Like why can't I just make the gesture bar invisible? It's super annoying.
It works the same way as the stock OS. Android 15 requires apps to implement edge-to-edge.
Or why does every app cut off the top where the camera is? Why can't I just zoom to fullscreen or just have it working like normal android?
No, it works the same ways as the stock OS. Perhaps you changed the the display cutout mode in developer options. Turn off developer options.
Why can't I have forward swipe on one side and back on the other like how IOS works and the way it makes the most sense?
No, iOS doesn't work that way. You're talking about app specific gestures and comparing them to Android system navigation.
Then you add all that with how there isn't any contactless payment options and it's a big bummer to use. I know they cannot control that one.... I thought Android would have at least one alternative option, but I cannot find one other than buying a Garmin watch.
No, there are multiple contactless payment options working with GrapheneOS.
It's just like why can't they make my life easier in other ways? Hiding the gesture bar, allowing you to select swipe options and sorting the full screen thing cannot be that hard to do.
These things already don't work the way you think they do.